Finding the Fourth Proportional to 454,429.19, 681,643.80 and 122,005.19
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Solution
The fourth proportional to 454,429.19, 681,643.80 and 122,005.19 is: 183,007.79
Step by Step Solution
- Step 1: Write the proportion equation
454,429.19 : 681,643.80 = 122,005.19 : x - Step 2: Convert to fraction form
454,429.19/681,643.80 = 122,005.19/x - Step 3: Cross multiply
454,429.19x = 681,643.80 × 122,005.19 - Step 4: Simplify right side
454,429.19x = 83,164,081,331.32 - Step 5: Solve for x
x = 83,164,081,331.32/454,429.19 - Step 6: Final answer
x = 183,007.79
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.